For anyone interested in getting a well-liked pulse oximeter that’s proven to be effective, it’s hard to bypass this choice. As of writing this review, it is listed as a best-selling device. Reviews are generally positive and encouraging for anyone looking to get some good use from their oximeter. This is an accurate device that’s easy to read and has a simple design. Numbers on the OLED display are well separated and difficult to confuse. A small pulse rate bar moves along the bottom of the display to help you see a visual representation of the heart beat as it’s taking its readings.